Seat refacing tool



June 1962 R. ELLENBOGEN ET AL 3,039,242

SEAT REFACING TOOL Filed Dec. 14, 1959 INVENTORS RRYM 0ND ELLENBOGEN W \-L\ A M H LA p I D E S wa /1 14%: MAW

United States Patent 3,039,242 SEAT REFACING TOOL Raymond Ellenbogen, 50 River Road, and William H. Lapides, 163 1st St., both of Troy, N. Filed Dec. 14, 1959, Ser. No. 859,359 1 Claim. (Cl. 51-195) This invention relates to improvements in seat refacing tools, and specifically to faucets and valves for water, steam and air, having particular reference to such a tool provided with a resilient shaft member adapted removably to mount grinding or abrasive means of different configuration adapted for use in grinding, surfacing or resurfacing faucet and globe seats of similar configuration in faucets, globe, angle stopper, check valves, and the like, and the provision of such a tool is the principal object of the invention.

Generally, it is also an object of the invention to provide such a tool that is economic of manufacture, simple, yet sturdy and durable of construction, which will operate with relative freedom from wear and tear, and mechanical or other dii'ficulties, and that is otherwise well suited to the purposes for which it is intended.

More specifically, it is an object of the invention to provide such a tool having a resilient, self-centering shaft adapted to be secured at one end for rotation in a rotary device, and at its other end removably to mount a grinding means which includes a member provided with opposite faces of different configuration forming grinding surfaces or provided with flexible grinding elements that conform to the opposite faces, and means removably to secure the grinding means in position on the shaft.

Other specific objects of the invention are the provision in the grinding means of an adapter, such as a resilient washer, having a convex, concave, flat or any shape, and a flexible grinding element, preferably in the form of a sandpaper or emery cloth disk therefor.

Another specific object of the invention is the provision of a resilient shaft which includes first and second rigid shaft portions and a resilient sleeve adapted to connect the same together.

Another specific object of the invention is the provision of a resilient sleeve member for connecting together two rigid shaft portions with spacer means therebetween within the sleeve to maintain the sections in separated and insulated position.

A further object of the invention is the provision in the grinding means of cylindrical screw head members of selected diameters to be accommodated by valve openings in order to aid the resilient shaft quickly to center itself upon rotation.

Other objects of the invention will in part be obvious and will in part appear hereinafter.

"The invention accordingly comprises an article of manufacture possessing the features, properties, and the relation of elements which will be exemplified in the article hereinafter described and the scope of the application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention reference should be had to the following detailed description taken in connection with the accompanying drawing, in which:

FIG. 1 is an elevational view of an embodiment of the device;

FIG. 2 is an exploded perspective view thereof, partly in section;

FIG. 3 is a transverse sectional view taken along the lines 3 3 of FIG. 2 and looking in the direction of the arrows; and

FIG. 4 is an elevational view of the lower portion of seats thereof.

The entire shaft portion may be made resilient but we prefer to utilize a first shaft portion 11 adapted to be secured in the chuck 12 of an automatic or manually operated drill (not shown). A second shaft portion 13 is provided and this in turn is connected with the first shaft portion 11 to a resilient sleeve 14 preferably made of rubber or any other suitable insulating material.

In order that the shaft portions 11 and 13 may be held in spaced as well as insulated relation, I provide an insulating member, such as a rubber plug 15, as shown in FIGS. 2 and 3.

The lower end of the shaft portion 13 is outwardly flared, as indicated at 16, squared off as at 17, and provided with a coaxial opening that is threaded as at 18 for holding a grinding means indicated generally at 19. The grinding means may constitute a grindstone having the shape of the member 20 which preferably has double faced operating surfaces on opposite sides thereof, that is, of any suitable configuration but, preferably, as shown, being flat on one side as at 21 and convex on the other side as at 22 but likewise squared off across the top to provide a flat surface as at 23. However, while a grindstone of this configuration may be used, we can also substitute therefor an adapter in the form of a regular faucet washer which is likewise represented by the configuration shown by the member 20. Such a washer would be resilient and would be provided with a coaxial opening therethrough as at 24, as would also a grinding stone, to pass the screw threaded shank 25 of a securing member which would be received by the screw threaded opening 18 in the bottom or second shaft portion 13.

When an adapter or washer, such as indicated at 20, is used, We provide -as the abrading or grinding element a disk or wafer 26 which may he in the form of sandpaper or emery cloth. Such disk is also provided with a coaxial opening 27 to pass the threaded shank 25 of the holding member.

One of the principal advantages of such a grinding tool is the double faced configuration of opposite sides. That is, if the valve seat, for example, of the valve 28, indicated in dotted lines in FIG. 1, is flat or plane surfaced, the adapter or Washer 20 will be secured to the shaft section 13 with the flat face 23 of the convex portion seated against the flat face 17 of the shaft section 13. The disk 26 will then lie against the face 21 of the adapter 20, whereby the flat face of the valve seat may be ground, surfaced, or re-surfaced. However, where the valve seat is concave, the adapter 20 may be reversed, as shown in FIG. 4, and the disk 26, being flexible, will readily adapt itself to the convex portions 22 to grind, surface or resurface the concave valve seat.

It will be observed that the threaded shank portion 25 of the holding member or screw indicated generally at 29 is provided with a head that has a peripheral cylindrical surface 30. Several of such screws with cylindrical heads of various selected sizes may be used that will accommodate the opening in the valve seat whereby the resilient shaft will readily center itself as soon as it is rotated. In other words, as shown in FIG. 1, the shaft member being resilient by virtue of the resilient nature of the coupling sleeve 14 may, when first positioned on the faucet seat 28, be in a non-aligned position as indicated in somewhat exaggerated form by the dotted lines 31 in FIG. 1. However, being resilient, and aided by the type of head 30 of the screw member 29, the grinding means will immediately be brought into coaxial alignment with the faucet seat so that the latter will readily and quickly be abraded.

It will thus be seen that the objects hereinbefore set forth may readily and efficiently be obtained and since certain changes may be made in the above article and different embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

Having described our invention what we claim as new and desire to secure by Letters Patent is:

A faucet seat grinding tool of the character described, including in combination a rigid shaft adapted to be secured at one "end for rotation in a rotating device, a second rigid shaft having the same longitudinal axis as said first shaft, an insulating member disposed between said shafts on the longitudinal axis thereof, an insulating sleeve encircling said insulating memlber adjacent portions of said first and second shafts, a member to be inserted in the faucet seat, a surface of said member to be seated in said faucet seat, means securing said member to the remaining end of said second shaft with said surface directed away from said second shaft, a resilient abrasive member, fastening means for rigidly fastening said abrasive member to said first member with said abrasive member conforming to the configuration of said surface whereby insertion of said first member in said faucet seat enables said abrasive member to conform the same to the configuration of said surface. 7

References Cited in the file of this patent UNITED STATES PATENTS 774,612 Stead Nov. 8, 1904 2,085,280 Tyler June 29, 1937 2,542,154 Mesirow Feb. 20, 1951 2,748,547 Davies et al. June 5, 1956 2,833,093 Shesler May 6, 1958 2,857,749 Fabbri et -al Oct. 28, 1958 

